# SDR AALA202207114807

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 8, 2022
- Submitted: July 11, 2022
- Operation: Air carrier
- Aircraft: [N939NN](https://openairdocs.org/aircraft/N939NN), registered now
- Make and model: Boeing 737
- Aircraft serial: 33491
- Aircraft time: 25,678 hours, 10,052 cycles
- System (JASC): [2120 · Air Distribution System](https://openairdocs.org/jasc/2120)
- Part: Filter
- Part number: P199753
- Condition: Smoke
- Location: Zone 100 - Fuse
- Stage of operation: CR
- How discovered: O
- Nature of condition: B
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA202207114807

## Discrepancy

AIRCRAFT WAS GROUNDED: DURING CRUISE THE FLIGHT ATTENDANT CALLED TO REPORT SMOKE AND ELECTRICAL SMELL IN CABIN. WE RAN THE SMOKE, FIRE, FUMES CHECKLIST, AND SMOKE AND FUMES DISSIPATED. FLIGHT ATTENDANT SAID FUMES WERE STRONGEST IN ROW 8, 9, 10. AIRCRAFT DIVERTED TO GRR AND DECLARED AN EMERGENCY. TROUBLESHOT AND FOUND LEFT RECIRCULATION FAN AS THE SOURCE, REMOVED AND REPLACED LEFT RECIRCULATION FAN (AALA202207115706) PER AMM 21-25-02 AND LEFT RECIRCULATION FILTER PER AMM 21-25-01.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.